1 /****************************************************************************
2     Copyright (C) 1987-2015 by Jeffery P. Hansen
3 
4     This program is free software; you can redistribute it and/or modify
5     it under the terms of the GNU General Public License as published by
6     the Free Software Foundation; either version 2 of the License, or
7     (at your option) any later version.
8 
9     This program is distributed in the hope that it will be useful,
10     but WITHOUT ANY WARRANTY; without even the implied warranty of
11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12     GNU General Public License for more details.
13 
14     You should have received a copy of the GNU General Public License along
15     with this program; if not, write to the Free Software Foundation, Inc.,
16     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 ****************************************************************************/
18 
19 #ifndef __list_h
20 #define __list_h
21 
22 typedef struct listelem ListElem;
23 typedef struct list List;
24 
25 typedef int elemcmp_f(const void*,const void*);
26 
27 struct listelem {
28   ListElem	*next,*prev;
29   void		*obj;
30 };
31 
32 struct list {
33   int		num;
34   ListElem	*first,*last;
35 };
36 
37 List	*new_List();
38 
39 void	 delete_List(List*);
40 
41 List	*copy_List(List*);
42 
43 void	List_init(List*);
44 
45 void	List_flush(List*);
46 
47 void	List_sort(List*L,elemcmp_f*);
48 
49 void	List_append(List*L,List*A);
50 
51 void	List_addToHead(List*,void*);
52 
53 void	List_addToTail(List*,void*);
54 
55 void *List_popHead(List*);
56 void *List_popTail(List*);
57 void *List_remove(List*,ListElem*);
58 void *List_nth(List*,int);
59 
60 #define List_uninit(L)	List_flush(L)
61 #define List_first(L)	(L)->first
62 #define List_last(L)	(L)->last
63 #define List_numElems(L) (L)->num
64 #define List_next(L,E)	(E)->next
65 #define List_prev(L,E)	(E)->prev
66 
67 #define ListElem_obj(E)	(E)->obj
68 
69 void *List_find(List *L,const void *obj,elemcmp_f*);
70 
71 #endif
72